Plural lamp socket



Feb. 8,1927. 1 1,616,528

J. s. CUMlNG PLURAL LAMP SOCKET Filed Feb. 21. 1921 Patented Feb. 8, 1927.

UNITED sr JAMES s. CUMING, or Louis, MISSOURI.

PLURAL LATE SOCKET.

.APPlicatiqn filed February 21, 1921. Serial No. mecca which shall provide a rigid frame connect ing the conducting parts which may be easily assembled and connected. p Further objects will appear from the detail description taken .in connection with the accompanying drawing, in, which:

Figure lfis aside elevation of a plural socket embodying this invention;

a Figure 2 isa side elevation of the frame; Figure 3 is a section onythe line 33,

Figure ;1; v I

' Figure 1 is an inside view of one of the half parts of the bodywith the frame assembled; and v I Figure 5'isan inside view of the other half part ofthe body.

Referring to the accompanying drawing,

1 designates a lamp socket conducting shell,

' such as may beprocured on'the market, with 2 an insulating closing cap 2'having a central contact assembled therewith. Two. or more of suchshells may be assembled to form a frame work, such as shown in Figure 2. A conductor3, which is preferably.

a copper wire, is .bent into a loop 1 near one end. A second-conductor: 5 also in the form of a wire 'is passed through the loop 4 and has its ends bent down as shown at 6. The two bent-portions 6 and the end 7 of the conductor 3 are positioned so as to engage the central contacts of the shells 1. The conductors 3 and 5 are securely fastened together mechanically and electrically by soldering at their joint as shown at 8.

The shells 1 are arranged in angular relation to one another, the axis of one of them being coincident with or parallel to that of the conductor 3and the axis of the others 7 making preferably an angle with said first axis. The shells are so positioned that the body of each of the side shells cont-acts directly with the central shell near its top at which point of contact the shells are securely connected mechanically and elecv trically' by a soldered joint 9. The central shell extends beyond the side shells, thereby permitting the latter to, be placed closer together, and; making the whole devicecompact andrigid. gEachof the said sideshells is further provided with a conductor 10 in the form of a wire soldered or otherwise securely connected to theshell near its top and extend ng upwardly engage a plug shell as hereinafter described.

The body of this socket is composed of of nsulating matetwohalf parts ll-and 12 therefrom as. i shown in Figure 2 so asvto be-posltioned to rial which are arranged to cover and enclose the frame Work.

.One of these parts 11- is equipped witha threaded stem 13 adapted to receive the threaded shell of a contact 7 plug l4.- The stem 13 is provided on one side with a'shoulder- 15 adapted to engage the-other half part 12 which is cut off as shown at 16 for that purpose.

Each of the half parts 11 andl2 is p rovidedwith a set ofchambers 17 corresponding in the two half parts so as to receive and enclose shells 1 of the frame. Each side] chamber 7 communicates with the central chamber through a notch18 adapted to permit contact between the shells in said chambers and. to accommodate the soldered joint 9. j

A channel 19 extends from each of said side chambers upwardly toward the stem 13 and is adapted to accommodate one of the conductors 10. Said connected with the central chamber by a channel 20 adapted to accommodate the conductor 5 and having a to'accommodate the soldered joint 8. The

channel 22 extends upwardly fromthecham he] 20 toward-the stem 13 and is adapted to accommodate the conductor 13. In the half part 11, this channel connects with a duct 23 passing through the stem 13. The channels 19 are each provided with a notch 24 located 'just under the stem 13 and open to the out side of the body when the two halves are assembled together. i

side chambers are each depression 21 adapted In assembling this socket, the skeleton" frame is constructed as shown in Figure 2.. This is then placed in the half part 11 passing the conductor .3 through theduct 23 and laying the shells down into their respective chambers 17, and the conductors 3, 5 and 10 into their respective channels 22, 20' and 19. The stem 13- being notches adapted to register; with the notches 24, theends of the conductors 10, when the frame is so assembled,"may be placed in said provided with notches. The other-halfp'art' 12 may then be assembled so "as to cover and enelose the frame Work and the two half parts may then be fastened together by-means of bolts 25 passing through perforations 26 formed in both half parts for that purpose.

' The plug shell 14- may now be .screwed onto the threaded stem 13. NVhen the plug" 14L has been so assembled, the ends of the conductors 1O Willlie just beneaththeshell thereof and tlie'ends of the con-d-uctorfiwill protrude through the central opening in the centralcontac-t 2-7 thereof. Permanent connectionsmay now-be made by -putting a drop of 'solderat each of the points of contactof of the conductors 5 and- 8-tothe central contacts-of the sockets together with the soldered'joint 9 directly connecting the'b'odies of thezshells provide a construction which is very rigid and occupies a minimum of space.

Again the connection :of'the conductors 10 and 3 with the plug-14 provides a Tigid'construction. Thethreaded stem engagin'gthe plug 14 together with the rigid soldered connections of the conductors 10 withsaid'plug form a safe andsecuresupport for thesocket as a Whole.

' It is obvious that-various changes may be made in the details of construction without departingfrom the spirit of this invention;

it is, therefore, to be understood thatthis be l mited to 'the'specific I I I plugshell to support thesso'cket,'means'for invention is not to details shown and described. V v

l-lavmg thus described the nvention, what is claimed is l. A lam-p socket comprising,

an axially divided body having the 1 other shell, said -body havinga' notch adjacent the base of saidlastshell and the conductor thereto adapted to permit connection of said partsyfrom the outside.

2. A lamp socket, comprising-a plurality of contact-shells, conductors connecting said shells, and an axially divided body having recesses to receive one of said shells and said conductors,one of said bodyparts having a. complete threaded stem enclosed by and cocupy-ing substantially the whole of the other shell and overlapping the other body part at the base of said stem and said, enclosing shell, said stem having a groove therealong to receive one of said conductors.

3: A lamp socket, comprising, a plurality of socket shells each having a central'contact assembled there-with, said shells being electrically connected together," series of conductors connecting said central contacts,

said connected shells and conductors providk ing an integral framefan'axially divided insulating body made in two half-parts having corresponding chambers adapted to receive said frame,=means on said body for receiving a plugshell' to support thesocket, means for connecting said, plug shell with said frame, andnneans for fastening said body parts together to enclose said frame.

l. A lamp socket, comprising a plurality of socket"shells'eachhaving a. central con tact l assembled therewith, said shells being electrically connected together, a seriesof conductors connecting said I central contacts, said connected shells and conductors providing an integral frame, an axially divided insulatingbody made in twohalfparts having corresponding chambers adapted to receive saidfra'me, one of said parts'having a. threaded stem adapted toengage a threaded connectingsaidplug shellwith said frame,"

f and 'means'f'o'r fastening s'aid'body parts toa plurality c of contact shells, conductors connecting said shells, and V recesses to receive one ofsaidi'shellsand said conductors. andhavin'g a stemreceived by I JAMES s .1oUMI e. 

